Infection controlQuestion 1121 of 1700

What is a portal of exit?

  1. The route a germ uses to enter a new host
  2. The way a germ travels between people
  3. A host with a higher risk of infection
  4. The way a germ leaves the reservoir
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Correct answer: The way a germ leaves the reservoir

Exit is the first step out of the source. The route into a new host is the portal of entry.

Source: Nursing Assistant (Reuter), 4.2: Chain of Infection

Practice infection control

Questions last reviewed: 18 October 2026